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jeremybenn |
/**
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* ASM: a very small and fast Java bytecode manipulation framework
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* Copyright (c) 2000-2005 INRIA, France Telecom
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.objectweb.asm.attrs;
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import org.objectweb.asm.Label;
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/**
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* Verification type info used by {@link StackMapAttribute}.
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*
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* @see <a href="http://www.jcp.org/en/jsr/detail?id=139">JSR 139 : Connected
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* Limited Device Configuration 1.1</a>
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*
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* @see "ClassFileFormat-Java6.fm Page 138 Friday, April 15, 2005 3:22 PM"
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*
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* @author Eugene Kuleshov
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*/
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public class StackMapType {
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public static final int ITEM_Top = 0;
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public static final int ITEM_Integer = 1;
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public static final int ITEM_Float = 2;
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public static final int ITEM_Double = 3;
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public static final int ITEM_Long = 4;
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public static final int ITEM_Null = 5;
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public static final int ITEM_UninitializedThis = 6;
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public static final int ITEM_Object = 7;
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public static final int ITEM_Uninitialized = 8;
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public static final String[] ITEM_NAMES = {
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"Top",
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"Integer",
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"Float",
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"Double",
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"Long",
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"Null",
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"UninitializedThis",
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"Object",
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"Uninitialized" };
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private int type;
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private Label offset;
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private String object;
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private StackMapType(int type) {
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this.type = type;
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}
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public int getType() {
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return type;
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}
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public static StackMapType getTypeInfo(int itemType) {
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if (itemType < ITEM_Top || itemType > ITEM_Uninitialized) {
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throw new IllegalArgumentException("" + itemType);
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}
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return new StackMapType(itemType);
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}
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public void setLabel(Label offset) {
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this.offset = offset;
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}
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public void setObject(String object) {
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this.object = object;
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}
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public Label getLabel() {
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return offset;
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}
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public String getObject() {
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return object;
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}
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public String toString() {
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StringBuffer sb = new StringBuffer(ITEM_NAMES[type]);
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if (type == ITEM_Object) {
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sb.append(":").append(object);
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}
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if (type == ITEM_Uninitialized) {
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sb.append(":L").append(System.identityHashCode(offset));
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}
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return sb.toString();
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}
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}
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